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<html lang="en">
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    <meta charset="UTF-8" />
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    <title>Document</title>
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  <body>
    <script>
      // const multiplyByThree = makeMultiplier(3)
      // console.log(multiplyByThree(5)) // 15
      // console.log(multiplyByThree(10)) // 30

      const makeMultiplier = function (a) {
        let mul = a
        const getMul = function (b) {
          return mul * b
        }
        return getMul
      }
      const multiplyByThree = makeMultiplier(3)
      console.log(multiplyByThree(5)) // 15
      console.log(multiplyByThree(10)) // 30
    </script>
  </body>
</html>
